by oneself与for oneself的区别区别?再举几个例子更好……

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by oneself与for oneself的区别区别?再举几个例子更好……
by oneself与for oneself的区别
区别?再举几个例子更好……

by oneself与for oneself的区别区别?再举几个例子更好……
by oneself 单独,独力
He is learning English by himself.
他正在自学英语
for oneself
独自地,靠自己的力量
I must check for myself.
我一定要亲眼看见才能相信
请及时采纳,不懂继续问( 天天在线 )

I did the homework by myself. 作业是我自己做的。
I bought a book for myself. 我为我自己买了一本书。